Is Aldis open on labor day?

No, ALDI is closed on Labor Day. They are open the day after and resume normal business hours,

Their normal business hours are:

Monday to Saturday. 9:00 a.m. to 8:00 p.m

Sundays 10:00 a.m. to 7:00 p.m.

Hours may vary at some stores, so it is best to check their hours for specific stores on their website.